I am looking to purchase a Airport Express and I have a few questions about it's uses. One, I recently bought an iPod touch which I would like to charge via the USB port on the APE, is this possible? I know all USB ports are standard with DC of 5V electrical output, but I'm not sure. Two, I already own an existing router and modem, can I use the APE to connect wireless to my router and use APE to broadcast a wireless signal? If not, can I use it via ethernet? Thanks!